Social insect living in organized colonies; characteristically the males and fertile queen have wings during breeding season; wingless sterile females are the workers.

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The sori become enclosed by the growing together of fertile fronds, and the spores are not liberated until the sporocarp decays and ruptures.

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Pseudospikelets 2–4 per spathe, usually 1 or 2 fertile; bracts subtending lateral pseudospikelets, lanceolate, apex puberulent.

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Taking self-fruitful rate as the criterion and segregating population of field survey as method, we got the result that the ratio of fertile plants and sterile plants in the three F2 population of K-cytoplasmic male sterile hybrid accords with 63:1 tested by Chi-square, therefore we can infer that the restorative mechanism of K-cytoplasmic male sterile line was controlled by three different major genes, which manifested as sporophore sterility.

結(jié)果表明：在三個K型胞質(zhì)雄性不育的F2群體中，可育單株與不育單株的比例經(jīng)卡方檢驗符合63：1的理論比例一级a片2018，因此可以推斷小麥K型胞質(zhì)雄性不育的恢復(fù)由3對主效恢復(fù)基因控制免费观看在线无码一区，并表現(xiàn)為孢子體不育類型。

If such gametophytes produce fertile gametes, the resulting sporophyte is then tetraploid, and large polyploid series may subsequently be developed.

如果這種配子體能夠產(chǎn)生可育的配子熟女口爆，那么形成的孢子體通常是四倍體，這樣就可以得到大量的多倍體婬乱A欧美大片。

There are 9,600,000 sq km fertile land in our great motherland.

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It was the vision of leaders of both universities that sowed the seed of cooperation in the fertile soil. It's their continuous support that sheltered the wind and storm from the tender shoot. It's the wisdom and courage of AABC leaders that ensure the tree grow upright. It's the devotion and confidence of the staff that foster the tree into a shading plant. It's the diligence and perseverance of our students that bring us a fruitful harvest of their success.

是兩校的領(lǐng)導(dǎo)憑借他們的遠見卓識在遼寧大學(xué)的沃土里播下了兩校合作的種子；兩校領(lǐng)導(dǎo)對項目的不斷支持呵護著亞澳的成長日韩精品芒果视频下载免费观看；學(xué)院歷任領(lǐng)導(dǎo)的睿智和勇氣引領(lǐng)亞澳朝著正確的方向發(fā)展精品国产丝袜自在线拍动漫；學(xué)院全體教師的敬業(yè)精神和堅定信念澆灌亞澳這棵幼苗長成參天大樹；勤奮刻苦黄色A片网站在线观看、堅韌不拔的學(xué)生用他們的優(yōu)異成績給我們帶來碩果累累的收獲大胆欧美熟妇XXXXXXX。

Leaves tufted; stipes 15-30 cm long, densely scaly at base, glabrous above; sterile lamina about 60 cm long and 20 cm wide, simply pinnate; pinnae numerous, alternate or subopposite, linear-lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed; veins close, forking once or twice and forming areoles near the midrib; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0.4 cm wide, lower surface almost entirely covered with sporangia.

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It's a lovely time to summon the stork, for planets in Taurus are very fertile and loving.

這是個召喚孩子的可愛時刻，因為行星在金牛座非常適合生育和愛久久国产AV综合。

Its site, straddling a desert and a fertile plain, has been witness to some of the most extraordinary events of this world.

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